Sleeve for protecting polypropylene-covered pipe comprising bonding agent

摘要

An elongate tubular article extending along a longitudinal axis has a polypropylene covering. A polyolefin secondary covering is at least partially superimposed over the polypropylene. The secondary covering has an edge with a face extending transverse to the axis. A bonding agent capable of bonding to the polypropylene and to the secondary covering is interposed at least between the edge and the polypropylene covering. A cured deposit of thermoset resin is applied at least over the edge of the secondary covering and bonds to the outer surfaces of the polypropylene and secondary coverings. This provides the secondary covering with increased stability against displacement radially outwardly with respect to the polypropylene covering.